@Luisa917 You should start by reading all of the Help articles for hosts on the main Airbnb site. Read all the policies and the Terms of Service. Then follow this and other hosting forums, where you will be learning from many hosts, not just one. Ask any questions about things you aren't clear on, and when you finally decide you are ready to host, you can post your new listing here and ask for critiques and feedback.
I see you have travelled as a guest, so think about the things you liked about the places you stayed and what you might have done differently, or provided, had you been the host.
Consider your target market. Don't try to attract everyone, concentrate on offering something that will work for a certain demographic of guest.
What works for young urban professionals or digital nomads is not the same thing that works for families, or solo travelers, or outdoorsy types coming to hike and bike. There are cross-overs in those, but you get my drift.
And also consider what will work for you, as a host. If you have another job, don't stress yourself out trying to turn over your Airbnb the same day in 3 hours, leave a day between bookings. If you are home-share hosting, think about how long you think you could put up with a guest you weren't fond of (my minimum is 3 days, as I don't want to clean and prepare for 1 or 2 nighters, and a 2 week max, in case they're annoying).
The way hosts market and run their Airbnbs is quite individual and there are many ways to do it, and many perspectives.